From: Petr Machata <pmachata@redhat.com>
Date: Tue, 15 Dec 2009 12:13:58 +0000 (+0100)
Subject: dwarflint: Only check for unused files if we managed to load CUs
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=c761971b1c824f9697e5722c2f140f72bc109250;p=thirdparty%2Felfutils.git

dwarflint: Only check for unused files if we managed to load CUs
---

diff --git a/src/dwarflint/check_debug_line.cc b/src/dwarflint/check_debug_line.cc
index 7b538c87f..a3947f20f 100644
--- a/src/dwarflint/check_debug_line.cc
+++ b/src/dwarflint/check_debug_line.cc
@@ -554,12 +554,15 @@ check_debug_line::check_debug_line (dwarflint &lint)
 	    << " `" << include_directories[i].name
 	    << "' is not used." << std::endl;
 
-      for (size_t i = 0; i < files.size (); ++i)
-	if (!files[i].used)
-	  wr_message (where,
-		      cat (mc_impact_3, mc_acc_bloat, mc_line, mc_header))
-	    << "the file #" << i + 1
-	    << " `" << files[i].name << "' is not used." << std::endl;
+      if (cus != NULL)
+	// We can't do full analysis unless we know which DIEs refer
+	// to files.
+	for (size_t i = 0; i < files.size (); ++i)
+	  if (!files[i].used)
+	    wr_message (where,
+			cat (mc_impact_3, mc_acc_bloat, mc_line, mc_header))
+	      << "the file #" << i + 1
+	      << " `" << files[i].name << "' is not used." << std::endl;
 
       if (!seen_opcode)
 	wr_message (where, cat (mc_line, mc_acc_bloat, mc_impact_3))